/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package sink

import (
	"time"

	"github.com/alipay/sofa-mosn/pkg/metrics"
	"github.com/alipay/sofa-mosn/pkg/types"
)

var defaultFlushInteval = time.Second

// StartFlush flush all metrics into given sinks, scheduled with given interval
func StartFlush(sinks []types.MetricsSink, interval time.Duration) {
	if interval <= 0 {
		interval = defaultFlushInteval
	}

	for _ = range time.Tick(interval) {
		FlushOnce(sinks)
	}
}

// FlushOnce flush all metrics into given sinks oneshot
func FlushOnce(sinks []types.MetricsSink) {
	allRegs := metrics.GetAll()

	// flush each reg to all sinks
	for _, sink := range sinks {
		sink.Flush(allRegs)
	}
}
